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<html>
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title></title>
	<style type="text/css">
		abbr{
			color: red;
		}
	</style>
</head>
<body>
	<p>
  You can use <abbr>CSS</abbr> (Cascading Style Sheets) to style your
  <abbr>HTML</abbr> (HyperText Markup Language). Using style sheets, you can
  keep your <abbr>CSS</abbr> presentation layer and <abbr>HTML</abbr> content
  layer separate. This is called "separation of concerns."
</p>

</body>
</html>